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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH2911-1GA22 |
| Alternative Part Number | 3RH29111GA22 |
| Manufacturer | Siemens |
| Product Type | Auxiliary Switch Front |
| Rated Insulation Voltage | 690 V |
| Mounting | Snap-On Mount |
| Contact Configuration | 2NO; 2NC |
| Protection Rating | IP20 |
| Connection Type | Screw |
| Mechanical Operating Cycles | 10,000,000 cycles |
| Rated Current | 10 A |
| Dimensions | 36 x 48.1 x 37.5 mm |
| Commodity Code | 853650 |
The Siemens 3RH2911-1GA22 is a meticulously engineered auxiliary switch designed to be snapped onto the front of contactor relays. This switch is a vital component in industrial control systems, offering a reliable solution for various switching operations. With a configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, it provides flexibility for integration into a wide range of circuits.
Constructed to meet the demands of size S00 contactor relays, the 3RH2911-1GA22 features a robust screw terminal connection, ensuring secure and stable wiring. The switch block is rated for an insulation voltage of 690 V, with a pollution degree of 3, and has a surge voltage resistance of 6 kV, highlighting its capability to withstand challenging industrial environments.
The auxiliary switch is rated for 10 million mechanical operating cycles, demonstrating its durability and long service life. It also has an electrical endurance of 200,000 cycles at AC-15 at 230 V, which is typical for devices of this nature, ensuring reliable performance over time.
With an IP20 protection class rating on the front, the switch is protected against solid objects larger than 12.5 mm, but it is not waterproof and should be installed in a manner that prevents exposure to liquids. The operating temperature range for the 3RH2911-1GA22 spans from -25°C to +60°C, with a storage temperature range of -55°C to +80°C, accommodating a variety of climatic conditions.
The compact dimensions of the switch, with a width of 36 mm, height of 37.5 mm, and depth of 43.7 mm, make it an unobtrusive addition to control panels, allowing for efficient use of space.
The Siemens 3RH2911-1GA22 auxiliary switch is a testament to the brand's commitment to quality and reliability, providing a dependable solution for enhancing the control and safety of electrical circuits in industrial applications.
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Frequently Asked Questions
What type of device is this auxiliary switch suitable for?
This auxiliary switch is suitable for use with contactor relays and power contactors, specifically designed to snap onto the front of size S00 devices.
What is the protection class of this auxiliary switch?
The protection class for the front of this auxiliary switch is IP20, indicating protection against solid objects larger than 12.5mm but not against liquids.
Can you describe the terminal type of this auxiliary switch?
The auxiliary switch features screw terminals, which provide a secure and reliable connection for the wiring.
What is the rated insulation voltage of this auxiliary switch?
The rated insulation voltage for this auxiliary switch is 690 V, with a degree of pollution 3.
What are the ambient temperature limits for operating this auxiliary switch?
The auxiliary switch can operate within an ambient temperature range of -25 to +60 degrees Celsius during operation, and it can be stored at temperatures ranging from -55 to +80 degrees Celsius.
How many mechanical operating cycles can this auxiliary switch withstand?
This auxiliary switch is designed to withstand typically 10 million mechanical operating cycles.
What is the electrical endurance of this auxiliary switch at AC-15, 230 V?
At AC-15, 230 V, the auxiliary switch has an electrical endurance of typically 200,000 operating cycles.
What is the contact reliability of the auxiliary contacts?
The auxiliary contacts have a contact reliability of one faulty switching operation per 100 million operations at 17 V, 1 mA.
What is the impulse voltage resistance of this auxiliary switch?
The impulse voltage resistance of this auxiliary switch is rated at 6 kV.
How many normally closed (NC) and normally open (NO) contacts does this auxiliary switch have?
The auxiliary switch has 2 normally closed (NC) and 2 normally open (NO) contacts.
